RealCalc Plus

15.2K reviews
Content rating
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About this app

RealCalc Plus is the pro version of Android's most popular scientific calculator.

RealCalc Plus is designed to look and operate exactly like a real hand-held calculator. It has all the standard scientific functions plus fractions, degrees/minutes/seconds, history, memories, customizable unit conversions and constants. You can choose from a number of display styles and formats. It also supports binary, octal and hexadecimal calculations and has an optional RPN mode. RealCalc Plus is easy to use, but has full help included in the app.

RealCalc Plus includes the following features:
* Traditional algebraic or RPN operation
* Fraction calculations and conversion to/from decimal
* Degrees/minutes/seconds calculations and conversion
* 12-digit display
* Extended internal precision (32-digit)
* User-customizable unit conversions
* User-customizable constants
* Percentages
* Result history
* 10 memories
* Binary, octal, and hexadecimal (can be enabled in Settings)
* Trig functions in degrees, radians or grads
* Scientific, engineering and fixed-point display modes
* 7-segment, dot-matrix or standard font display
* Landscape mode
* Homescreen widget (now with RPN support)
* Configurable digit grouping and decimal point
* Three RPN styles: direct-entry (classic RealCalc mode), buffered-entry, or XYZT rolling stack
* Samsung multi-window support with drag & drop
* External keyboard support
* Full built-in help
Updated on
Oct 16, 2015

Data safety

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15.2K reviews
Attic Man
March 3, 2022
Excellent calculator! I'm a computer engineer and love the conversion to different number formats, hex, dec, bin. The haptic feedback is also a nice touch. Feels like I'm using a real calculator! The author did an excellent job with this nice piece of software. Very impressed with all the conversions as well. The free version is good but purchase the paid for version for the extra set of features and to just give some money back to the author for the hard work and constant updates.
22 people found this review helpful
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A Google user
October 5, 2019
Hands-down the best calculator app I've ever used. I have a TI-86 emulator installed as well for complex calculations, and I pretty much never use it. RealCalc covers just about every use case, from something as simple as calculating a tip quickly, to doing advanced math. It's simple, it's powerful, there's no nonsense, and it even supports RPN. I wish every other app on my phone did its job as well as RealCalc does its.
21 people found this review helpful
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A Google user
July 10, 2019
It's a really handy and powerful calculator app; it may feel weird to put money down on such an app, but it's been really useful. It has a lot of features, and I like that the visuals look like actual calculator buttons and display. My biggest gripe is that the interface can sometimes be a bit obtuse; there's not an easy way to get an explanation as to what certain buttons or functions do, and some functions or buttons are a bit harder to use or access, like unit conversion.
25 people found this review helpful
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What's new

* Homescreen widget now supports RPN (follows app by default, can be changed in settings).
* New delta-percent function.
* Support for Android 6.0 Marshmallow.
* Fixed possible crash on a few devices running 5.1 (Jiayu S3, Lenovo K3 Note).